European Food Research and Technology

, Volume 214, Issue 6, pp 505–510 | Cite as

Betalain and phenolic compositions of four beetroot (Beta vulgaris) cultivars

  • Tytti S. Kujala
  • Maarit S. Vienola
  • Karel D. Klika
  • Jyrki M. Loponen
  • Kalevi Pihlaja
Original paper

Abstract.

Four cultivars of red beetroot (Beta vulgaris) were evaluated with respect to their betalain and phenolic contents. The compounds were analysed using HPLC and identified by HPLC-DAD, HPLC-ESI-MS and NMR techniques. Betalains (vulgaxanthins I and II, betanin and isobetanin) and phenolics [5,5',6,6'-tetrahydroxy-3,3'-biindolyl, feruloylglucose and β-D-fructofuranosyl-α-D-(6-O-(E)-feruloylglucopyranoside)] were determined in different parts of the root; betalains were analysed separately in the water extract and phenolics in the fractionated 80% aqueous methanol extract (betalain-free water fraction). In each cultivar, both betanin and isobetanin were found in greater amounts in the peel than in the flesh. A similar trend was not observed in the distribution of vulgaxanthins. The three studied phenolics appeared in all root parts of the beetroot cultivars with the flesh generally containing the least content. Additionally, two phenolic amides (N-trans-feruloyltyramine and N-trans-feruloylhomovanillylamine) and four flavonoids (betagarin, betavulgarin, cochliophilin A and dihydroisorhamnetin) were detected in the fractionated 80% aqueous methanol peel extracts (acetonitrile fraction) of beetroot.

Beta vulgaris Beetroot Cultivars Betalains Phenolics 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • Tytti S. Kujala
    • 1
  • Maarit S. Vienola
    • 1
  • Karel D. Klika
    • 1
  • Jyrki M. Loponen
    • 1
  • Kalevi Pihlaja
    • 1
  1. 1.Department of Chemistry, Vatselankatu 2, 20014 University of Turku, Finland

Personalised recommendations